delco data link

[steve ravet]

>         Is it the "ccc" or "P4"?  what year is the car? do you have
>         Pins M &
> E (serial data and Clock) or not?  I have most of the info you need
> to get the data stream from the "ccc" system.  Let me know what you
> want?

As others have said, be sure and check the archives for answers also. 
 I posted a pretty complete description of the "ccc" or C3 data 
stream.  This is the 160 baud data stream.  I don't recall the name 
of the thread, but it was (maybe?) 6 months ago.  I even drew ascii 
diagrams of the wave forms.

On a related note, is there a simple way to tell by looking at the 
ECM if it is a C3 or P4?  I know vettes had the P4 ECMs, what other 
models/engines did?

--steve

> 
> 
> At 09:48 PM 2/24/97 -0800, you wrote:
> >hi to all the diy_efi freaks.
> >
> >at present im about half way through wrighting a data scanner for
> >the early modle delco system & ran into a prob with the protocol
> >and have left it sitting for some time.....dose anyone have any
> >info on this system at all that might help????? ......  kinda like
> >"TURBO LINK" that the buick guys run.....
> >